Fig. 3
a Clearance rate on nanophytoplankton cells, measured for mussels varying in mean size from 1.5 to 25 mm (corresponding to 0.5–700 mg DW of shell and tissue) for 3 years. The clearance rate is expressed as the litres of water cleared of cells per hour per individual mussel. Both axes are on log scale. b The clearance rate on nanophytoplankton cells as a function of the mean individual mussel tissue dry weight. The data were collected in 2012. The regression coefficient did not differ significantly from the expected value of two-thirds. Therefore, a regression line was fitted using a slope of two (black line). The relationship between clearance rate (L h−1) and tissue dry weight (g) is best described by the equation log R C = log (−0.13 ± 0.06) + 0.67 log W. Both axes are on log scale